{"instruction": "You are an expert in event extraction. Please extract events from the input that conform to the schema definition. Return an empty list for events that do not exist, and return NAN for arguments that do not exist. If an argument has multiple values, please return a list. Respond in the format of a JSON string.", "schema": [{"event_type": "adverse event", "trigger": true, "arguments": ["Subject.Gender", "Treatment.Disorder", "Combination.Drug", "Treatment.Freq", "Subject.Race", "Treatment.Drug", "Treatment.Time_elapsed", "Subject", "Subject.Population", "Treatment.Route", "Treatment.Dosage", "Treatment.Duration", "Subject.Age", "Effect", "Subject.Disorder", "Treatment"]}, {"event_type": "potential therapeutic event", "trigger": true, "arguments": ["Subject.Age", "Treatment", "Subject.Disorder", "Subject.Population", "Treatment.Time_elapsed", "Subject.Gender", "Combination.Drug", "Treatment.Dosage", "Treatment.Duration", "Treatment.Freq", "Treatment.Drug", "Treatment.Route", "Subject", "Subject.Race"]}], "input": "We observed ventricular fibrillation in 2 patients who presented to the emergency department with pre-excited atrial fibrillation and were given 12 mg of adenosine."}
{"adverse event": [{"trigger": "given ", "arguments": {"Subject.Gender": "NAN", "Treatment.Disorder": "pre-excited atrial fibrillation", "Combination.Drug": "NAN", "Treatment.Freq": "NAN", "Subject.Race": "NAN", "Treatment.Drug": "adenosine", "Treatment.Time_elapsed": "NAN", "Subject": "2 patients who presented to the emergency department with pre-excited atrial fibrillation", "Subject.Population": "2", "Treatment.Route": "NAN", "Treatment.Dosage": "12 mg", "Treatment.Duration": "NAN", "Subject.Age": "NAN", "Effect": "ventricular fibrillation", "Subject.Disorder": "NAN", "Treatment": "12 mg of adenosine"}}], "potential therapeutic event": []}